1 Astrology
1.1 Origin
Pakistan, Tanzania
Southern and central Africa
1.2 Color
Brown, gray, Green, Blue, rose, Red
Grey, Green
1.3 Streak
White, Colorless
Not Available
1.4 For which Rashi?
Not Available
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1.5 Planet
Not Available
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1.6 Element of Planets
Not Available
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1.7 How to Wear?
1.7.1 Finger
Not Available
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1.7.2 Ring Metal
Not Available
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1.8 Energy
Not Available
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1.9 Deities
Not Available
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1.10 Not to wear with
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1.11 Powers
Not Available
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1.12 Birthstone
1.12.1 Planetary
Not Available
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
Not Available
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2.2 Solubility
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
3.20-3.503.62-3.68
1
7.18
2.5 Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even
Conchoidal
2.6 Cleavage
Perfect {010} imperfect {100}
Not Available
2.7 Mohs Hardness
2.8 Chemical Composition
Ca2Al3(SiO4)3(OH)
(Mg,Fe,Zn)Al 6BeO 12Ulrich Henn and Claudio C.
3 Optical Properties
3.1 Luster
3.2 Pleochroism
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
Not Available
3.3 Dispersion
3.4 Transparency
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Gemmological Tables (2004)
3.5 Refractive Index
1.685-1.7071.719-1.739
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
0.006-0.0180.014-0.016
0
0.296
3.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
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4.1.2 Cardiovascular
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4.1.3 Respiratory
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4.1.4 Reproductive
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4.1.5 Digestive
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4.2 Psychology
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4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
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